So far, V8 haven't perfrom the register allocation on ARM backend, V8 always load the arguments from memory before the operation, and then store the result back to memory. but actually, in other architecture, ia32 or x64, V8 will track the usage of registers and perfrom the register allocation during the virtual frame construction. I want to ask why don't implement the RA for ARM even the framework of RA on ARM is existed ? Thanks.
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